将给定的两个日期分割成连续的单天日期

/**
 *将日期段分割成单天
 * @param beginDate
 * @param endDate
 * @return
 * @throws ParseException
 */
public static  List<String> splitDate(String beginDate ,String endDate) throws ParseException {
    //1.先把String类型的日期转换为Date
    SimpleDateFormat sf = new SimpleDateFormat("yyyy-MM-dd");
    Date begin = sf.parse(beginDate);
    Date end = sf.parse(endDate);
    //2.用日历类来实现时间比较
    Calendar beginCal = Calendar.getInstance();//开始时间
    Calendar endCal = Calendar.getInstance();//结束时间
    //设置值
    beginCal.setTime(begin);
    endCal.setTime(end);
    //实例化一个日期集合来接受跨天所有的日期数据
    List<String> returnList = new ArrayList<String>();
    //循环比较
    while (beginCal.compareTo(endCal) < 1) {
        SimpleDateFormat sf1 = new SimpleDateFormat("yyyy-MM-dd");
        returnList.add(sf1.format(beginCal.getTime()));
        beginCal.add(beginCal.DATE, 1);//每次循环开始日期增加一天
    }
    return  returnList;
}

实验该方法********************************************************************************************************************

@GetMapping("/split/{start}/{end}")
public List split(@PathVariable String start ,@PathVariable String end){
    List<String> datas = null;
    try {
        datas = splitDate(start,end);
    } catch (ParseException e) {
        e.printStackTrace();
    }
    return datas;
}

调用示例  /split/2017-12-01/2018-01-01

结果集

[ "2017-12-01", "2017-12-02", "2017-12-03", "2017-12-04", "2017-12-05", "2017-12-06", "2017-12-07", "2017-12-08", "2017-12-09", "2017-12-10", "2017-12-11", "2017-12-12", "2017-12-13", "2017-12-14", "2017-12-15", "2017-12-16", "2017-12-17", "2017-12-18", "2017-12-19", "2017-12-20", "2017-12-21", "2017-12-22", "2017-12-23", "2017-12-24", "2017-12-25", "2017-12-26", "2017-12-27", "2017-12-28", "2017-12-29", "2017-12-30", "2017-12-31", "2018-01-01" ]